LEGO Group Begins Construction on 116 MW Solar Park Near Its Billund Headquarters

The LEGO Group has started construction of its largest solar park to date near its global headquarters in Billund, Denmark.

The project will have 116 MW of installed photovoltaic capacity and an 80 MW peak grid connection. Once operational, it is expected to generate approximately 99 GWh of renewable electricity annually, enough to match the LEGO Group’s total electricity consumption across its Billund operations on an annual basis. Commercial operation is planned for late 2027.

The Billund Solar Park is notable not only for its size. Its design combines utility-scale solar power with wetlands, wildlife habitats, public walking routes and educational spaces. Of the approximately 100-hectare site, 65 hectares will contain solar panels, while the remaining 35 hectares will be used for natural habitats, open landscapes and community access.

For corporate energy buyers, solar EPC companies and professional procurement teams, the project offers a practical example of how renewable generation, grid connection, biodiversity and long-term corporate climate strategy can be developed within one infrastructure investment.

Billund Solar Park at a Glance

The key figures published by the LEGO Group are:

• 116 MW of installed solar capacity
• 80 MW peak grid connection
• Approximately 99 GWh of annual renewable electricity generation
• 65 hectares allocated to solar panels
• 35 hectares allocated to nature and public spaces
• Planned operation from late 2027
• Enough annual generation to match the LEGO Group’s total electricity consumption in Billund

The project is expected to increase the company’s installed renewable energy capacity by 204% compared with 2025. In that year, renewable energy assets owned by the LEGO Group supplied approximately 5.8% of total energy consumption at its production sites, up from 3.6% in 2024.

The company has not publicly identified the selected solar panel manufacturer, solar inverter supplier, EPC contractor, total investment value or final balance-of-system configuration in its construction announcement. These details should not be assumed until they are confirmed through official project documentation.

Why the Project Matters to the LEGO Group

Billund is more than the company’s administrative headquarters. It is the town where the LEGO Group was founded in 1932 and remains one of its most important manufacturing, development and employment locations.

Locating a large solar park near these operations gives the company a highly visible renewable energy asset connected to its historical and operational centre.

The project forms part of the LEGO Group’s target to achieve net-zero greenhouse gas emissions across its value chain by 2050. The company also has an externally validated target to reduce absolute greenhouse gas emissions by 37% by 2032 compared with a 2019 baseline.

The LEGO Group currently uses several approaches to increase renewable electricity supply:

• Directly owned renewable generation
• Solar installations at or near production sites
• Power Purchase Agreements
• Renewable Energy Certificates for remaining electricity demand

The company states that PPAs are being considered where direct solar energy cannot fully supply a site. Renewable Energy Certificates are used for electricity requirements that cannot currently be met by directly connected renewable generation or PPAs.

This layered approach is increasingly common among multinational companies. A single solar farm may supply a substantial share of annual electricity requirements, but different facilities, operating hours and regional grids usually require several procurement methods.

What Does “Matching 100% of Electricity Consumption” Mean?

The LEGO Group says that the solar park is expected to generate enough electricity to match 100% of its total electricity consumption in Billund.

This should be understood as an annual energy comparison.

If the company consumes approximately 99 GWh in Billund during a year and the solar park generates approximately the same amount, the annual volumes may be matched. It does not mean that the solar farm will physically supply every LEGO facility during every hour of the year.

Solar generation varies according to:

• Time of day
• Cloud cover
• Season
• Module temperature
• System availability
• Network conditions
• Curtailment
• Maintenance

During sunny daytime periods, the park may generate more electricity than the company’s simultaneous Billund demand. During winter evenings and nights, its output will be low or zero.

The surrounding grid therefore remains essential. It absorbs surplus production when generation exceeds local demand and supplies electricity when solar output is insufficient.

A true 24-hour renewable electricity strategy would normally require a broader mix of solar, wind, energy storage, flexible consumption, grid supply and potentially other firm low-carbon generation.

Understanding the 116 MW Solar Capacity and 80 MW Grid Connection

The difference between the project’s 116 MW installed capacity and its 80 MW peak grid connection is technically important.

Solar projects are frequently described using more than one capacity figure:

• DC capacity represents the combined rated output of the solar panels under standard test conditions.
• AC capacity refers to the output capability of the solar inverters.
• Grid connection capacity defines how much power the project may export at its connection point.
• Contracted capacity may refer to a commercial energy agreement rather than the physical module capacity.

Based on the published figures, the Billund project has an installed-to-grid ratio of approximately 1.45:1.

This means that the solar panel array is larger than the maximum grid connection capacity. Such DC oversizing is common in utility-scale photovoltaics. IEA PVPS data indicate that many modern utility-scale projects use DC-to-AC ratios between approximately 1.1 and 1.5.

Why Oversize the Solar Panel Array?

Solar panels operate at their full rated power only under specific laboratory conditions. In real operation, output may be reduced by lower irradiation, high module temperature, soiling, electrical losses and module degradation.

A larger DC array can help the inverters and grid connection operate closer to their maximum capacity for more hours of the year.

Potential benefits include:

• Higher morning production
• Higher late-afternoon production
• Better output during cloudy conditions
• Improved use of the grid connection
• Higher annual electricity generation
• Lower cost per generated megawatt-hour

During periods of very strong solar irradiation, the module array may theoretically produce more than the 80 MW export limit. The solar inverter or plant controller then limits the output. This is commonly known as clipping or active power limitation.

A well-designed project balances the additional generation gained during lower-light hours against the energy lost during periods of output limitation.

Is 99 GWh a Realistic Annual Production Figure?

The LEGO Group expects the solar park to produce approximately 99 GWh annually.

Actual production will depend on the final module layout, orientation, inverter architecture, electrical losses, weather conditions, system availability and grid restrictions. The published figure should therefore be understood as a long-term production estimate rather than a guaranteed result for every individual year.

Annual yield assessments for a project of this scale would typically consider:

• Long-term solar irradiation data
• Module orientation and tilt
• Horizon and near-shading
• Temperature losses
• Solar inverter efficiency
• DC cable losses
• AC and transformer losses
• Soiling and snow
• Module mismatch
• Planned maintenance
• Technical availability
• Grid curtailment
• Long-term degradation

European project developers commonly use simulation tools and bankable energy-yield studies before final investment and financing decisions. The European Commission’s PVGIS platform also provides location-specific solar radiation and photovoltaic production data for preliminary assessments, although a utility-scale project requires more detailed engineering than a standard online estimate.

Solar Panel Procurement for a 116 MW Project

A project of this size requires a large and carefully controlled solar panel supply programme.

The final number of modules will depend on the selected wattage. As a simplified example, a 116 MWp array would require approximately:

• 232,000 modules at 500 W each
• 211,000 modules at 550 W each
• 193,000 modules at 600 W each
• 178,000 modules at 650 W each

These figures are illustrative and do not identify the actual module configuration selected for Billund.

The module with the highest nameplate power is not automatically the best commercial choice. An EPC company or solar PV supplier must evaluate the complete relationship between module design, mounting system, electrical layout, transport and long-term operation.

Important Solar Panel Specifications

Utility-scale procurement should examine:

• Nominal module power
• Module efficiency
• Cell technology
• Bifacial or monofacial construction
• Temperature coefficient
• Open-circuit voltage
• Short-circuit current
• Maximum system voltage
• Mechanical load rating
• Hail resistance
• Fire classification
• Module dimensions
• Module weight
• Cable length
• Connector type
• Product warranty
• Performance warranty
• Annual degradation guarantee
• Manufacturer bankability
• Supply-chain traceability

The module dimensions also affect the number of panels that fit within each row, the length of the mounting structure, labour requirements and the number of modules that can be transported on each pallet or truck.

A small difference in module dimensions can produce significant changes across hundreds of thousands of solar panels.

Solar Inverter Architecture and Grid Control

The Billund construction announcement does not identify whether the project will use utility-scale string inverters, central inverters or a combination of different inverter architectures.

Both approaches can be suitable when correctly designed.

Utility-Scale String Inverters

Large string inverters can provide:

• Multiple MPPT inputs
• Modular plant architecture
• Detailed string-level monitoring
• Reduced impact from a single inverter failure
• Flexible response to different row orientations
• Easier replacement of individual inverter units

They may require a larger number of individual units, communication connections and distributed AC collection points.

Central Solar Inverters

Central inverter stations can provide:

• High power density
• Centralised maintenance
• Fewer major conversion units
• Integrated medium-voltage solutions
• Simplified block-based plant design

A central inverter failure may affect a larger section of the solar park, making spare-parts planning and service response particularly important.

Compatibility Cannot Be Based on Wattage Alone

The selected solar inverter must be matched to the exact electrical characteristics of the modules.

The EPC designer must verify:

• Maximum DC voltage
• Minimum and maximum MPPT voltage
• Maximum input current
• Maximum short-circuit current
• Number of strings per MPPT
• Cold-weather open-circuit voltage
• Cable voltage drop
• DC oversizing limit
• Connector compatibility
• Reactive power capability
• Danish grid-code requirements

Modern high-power solar panels can have substantially higher operating current than earlier module generations. An inverter may appear compatible based on total power while still having inadequate current capacity at its MPPT inputs.

Grid Connection Is a Critical Project Workstream

The 80 MW grid connection is one of the most important elements of the Billund project.

A solar park cannot begin commercial operation simply because the solar panels and inverters have been installed. The generation facility must meet the applicable technical and operational requirements at the point of connection.

For Danish generation projects, the grid connection process involves defining the connection point and assessing whether the facility will connect to the distribution or transmission system. Network studies and connection agreements may address power quality, reactive power, communication, system models and technical compliance.

A utility-scale solar project may need to demonstrate:

• Voltage regulation
• Frequency response
• Reactive power capability
• Fault ride-through
• Harmonic compliance
• Protection coordination
• Active power control
• Remote dispatch capability
• SCADA communication
• Accurate metering
• Plant simulation models

The grid connection can become more schedule-critical than the physical availability of the solar panels.

Modules, inverters and mounting systems may be delivered on time, but commercial operation can still be delayed if network studies, substation construction, protection testing or compliance documentation remain incomplete.

Does the Project Include Battery Energy Storage?

The LEGO Group’s June 2026 construction announcement does not mention an energy storage system at the Billund solar park.

It should therefore not be assumed that a solar battery or utility-scale BESS is included in the current scope.

Battery energy storage could theoretically support a project with an oversized solar array and restricted grid connection by:

• Storing electricity during peak solar production
• Reducing clipping
• Shifting generation into evening hours
• Providing grid-support services
• Managing export limits
• Improving local renewable energy utilisation

Whether such a system is economically justified depends on hourly generation, electricity prices, grid constraints, connection agreements and available flexibility-market revenue.

A battery should not be added to a project simply because the solar panel capacity is higher than the grid connection. Detailed modelling must establish how frequently export limitation occurs and whether the value of recovered energy and grid services can justify the investment.

Biodiversity Is Built into the Project Design

The Billund Solar Park has been planned as more than a fenced energy-generation facility.

Approximately 65 hectares will contain solar panels. The remaining 35 hectares will be dedicated to wetlands, open landscapes and wildlife habitats. The project includes water holes, bat habitats, nesting boxes and planting with grasses, flowers, shrubs and trees. Vegetation will also be used around the solar areas to reduce visual impact.

This approach reflects a wider change in utility-scale solar development.

Project quality is increasingly assessed not only through installed megawatts and annual electricity production, but also through:

• Land-use efficiency
• Habitat impact
• Water management
• Soil condition
• Visual integration
• Community acceptance
• Agricultural compatibility
• Long-term site restoration

European research has identified opportunities to combine photovoltaic generation with agricultural or wider land-use functions, although the outcome depends heavily on project design and local conditions.

Biodiversity Requires Long-Term Management

Installing nesting boxes and planting flowers does not automatically guarantee a successful biodiversity outcome.

The site will require an ongoing management plan covering:

• Native plant selection
• Invasive species control
• Mowing and grazing schedules
• Wetland maintenance
• Water quality
• Habitat monitoring
• Pesticide restrictions
• Access routes
• Fire management
• Soil compaction
• Decommissioning and restoration

Construction practices also matter. Heavy vehicles, trenching and material storage can damage soil and habitats before the ecological areas are established.

Biodiversity commitments should therefore be incorporated into EPC planning, construction supervision and long-term operation and maintenance contracts.

Public Access and Community Use

The nature areas surrounding the solar park will be open to the public.

A network of walking paths and boardwalks will allow visitors to explore the site and learn about local biodiversity. An existing transformer tower will be restored and repurposed as a small museum.

Public access introduces additional design requirements compared with a fully restricted solar farm.

The project must manage:

• Safe separation from electrical equipment
• Fencing and controlled access
• Warning signage
• Emergency routes
• Water and wetland safety
• Maintenance traffic
• Accessible path design
• Vandalism prevention
• Public liability
• Visitor interaction with wildlife areas

The combination of energy infrastructure and recreational space can improve community acceptance, but only when the operational and safety boundaries remain clear.

What Corporate Energy Buyers Can Learn from Billund

The project offers several lessons for companies considering their own renewable energy strategy.

Build New Generation Where Possible

New solar capacity provides a stronger additionality argument than purchasing environmental certificates from an existing project.

The Billund investment creates a new physical generation asset that would not otherwise have produced the same renewable electricity.

Match the Project to the Operational Footprint

The solar park is located near one of the company’s largest and most important operational centres.

That creates a visible relationship between corporate electricity demand and new renewable generation, even though the public grid remains responsible for balancing the electricity in real time.

Distinguish Annual Matching from Continuous Supply

Generating the same annual quantity as a company consumes is valuable, but it does not create 24/7 renewable operation.

Corporate reporting should clearly explain whether claims are based on:

• Annual renewable matching
• Hourly matching
• Direct physical supply
• Power Purchase Agreements
• Renewable Energy Certificates
• Owned generation

Clear terminology reduces the risk of overstating the operational effect of a project.

Integrate Nature and Community Requirements Early

Biodiversity areas and public paths should be considered during the initial site design, not added after the electrical layout has already been finalised.

Early integration allows the project team to coordinate:

• Solar panel rows
• Inverter stations
• Cable routes
• Wetlands
• Habitat corridors
• Public access
• Maintenance roads
• Landscaping

This can reduce conflicts between electricity production, safety and ecological objectives.

Procurement Considerations for EPC Companies and Solar Wholesalers

A 116 MW solar park requires disciplined procurement and delivery coordination.

The project cannot rely on ordinary webshop stock or isolated component purchases. Equipment must be reserved, inspected, transported and delivered according to the construction schedule.

A professional procurement package should cover:

• Solar panel specification
• Solar inverter architecture
• Mounting or tracking structure
• DC cables and connectors
• Combiner equipment where required
• Medium-voltage transformers
• Switchgear
• Plant controller
• SCADA system
• Weather stations
• Monitoring equipment
• Spare parts
• Testing and commissioning equipment

Technical Documentation Must Match the Exact Model

A solar distributor or solar wholesaler should provide documentation for the exact product revision being delivered.

Required files may include:

• Manufacturer datasheet
• EU Declaration of Conformity
• IEC test certificates
• Grid-compliance certificates
• Installation manual
• Fire classification
• Mechanical load documentation
• Warranty terms
• Flash-test data
• Serial-number records
• Packaging information
• Transport and storage instructions

A certificate for a similar module family may not be sufficient if the dimensions, current, connector or internal construction differ from the ordered model.

Delivery Planning Is Part of Engineering

Thousands of pallets must arrive in the correct sequence without overwhelming the construction site.

Procurement teams should confirm:

• Factory production schedule
• Pallet quantity
• Modules per pallet
• Pallets per truck
• Delivery sequence
• Temporary storage requirements
• Weather protection
• Unloading equipment
• Site-road capacity
• Damage inspection procedure
• Replacement stock
• Serial-number traceability

For a project of this scale, even a low transport damage percentage can affect hundreds of modules.

Regional Stock Remains Important

Most modules for a utility-scale project will normally arrive through scheduled factory shipments. European warehouse stock remains valuable for:

• Replacement solar panels
• Spare solar inverters
• Communication equipment
• Connector replacements
• Monitoring hardware
• Warranty cases
• Late design changes

A B2B solar webshop can support product research and smaller replacement orders, but the main project supply requires direct commercial coordination.

Solar&Solar Wholesale supports professional enquiries for solar panels, commercial and utility-scale solar inverters, energy storage, electrical protection and complete project components. Exact model availability, raktárkészlet, technical compatibility and European delivery conditions must be confirmed before procurement.

Solar Park Operation and Maintenance

Long-term performance depends on more than the initial equipment specification.

A professional operation and maintenance strategy should include:

• Continuous system monitoring
• Inverter alarm management
• String-performance analysis
• Thermal inspections
• Electrical testing
• Vegetation management
• Module cleaning when required
• Tracker or structure inspection
• Transformer maintenance
• Security monitoring
• Spare-parts management
• Annual performance reporting

The expected 99 GWh annual generation will only be achieved when technical availability remains high and faults are identified quickly.

Performance Ratio and Availability

Plant operators normally compare actual production with the energy expected under the measured weather conditions.

A production shortfall may result from:

• Module soiling
• Inverter faults
• String disconnection
• Sensor errors
• Transformer outages
• Grid curtailment
• Shading from vegetation
• Communication failures
• Module degradation
• Incorrect modelling assumptions

Simply comparing one year’s output with the headline 99 GWh estimate may be misleading because annual weather conditions vary.

A weather-adjusted performance assessment gives a more accurate picture of whether the system is operating correctly.

Frequently Asked Questions About the LEGO Billund Solar Park

How large will the LEGO Group’s Billund solar park be?

The project will have 116 MW of installed solar capacity and an 80 MW peak grid connection.

How much electricity will the solar park generate?

The LEGO Group expects annual renewable electricity generation of approximately 99 GWh. Actual yearly production will vary according to weather, system availability and grid conditions.

When will the Billund Solar Park begin operating?

Operations are planned to begin in late 2027.

Will the solar park directly power every LEGO building in Billund?

The project is expected to generate enough renewable electricity to match the company’s total annual Billund electricity consumption. The public grid will still balance differences between real-time solar production and electricity demand.

Why is the installed capacity larger than the grid connection?

The 116 MW solar panel array is larger than the 80 MW grid connection so the project can use the connection more effectively during mornings, afternoons and lower-irradiance conditions. Output may be limited during the strongest production periods.

Does the project include battery energy storage?

The construction announcement does not identify a battery energy storage system as part of the current project scope.

How much land will be used for solar panels?

Approximately 65 hectares will contain solar panels, while 35 hectares will be allocated to habitats, wetlands, open landscapes and community areas.

Will the public be able to visit the site?

Yes. The surrounding nature areas will include public paths and boardwalks. An existing transformer tower will also be converted into a small museum.

The Billund Solar Park demonstrates how a corporate renewable energy project can be designed around more than electricity production. Its 116 MW solar array will support the LEGO Group’s climate strategy, while the restricted 80 MW grid connection highlights the importance of intelligent DC sizing and network planning. The nature areas, wetlands and public routes also show that utility-scale photovoltaics can be integrated with wider land-use and community objectives when these requirements are included from the beginning.

For the solar industry, the project reinforces the need for complete, procurement-ready solutions. Solar panels, solar inverters, grid controls, electrical protection, monitoring and long-term service must be selected as one coordinated system. Installed capacity creates the headline, but engineering quality, grid compliance, documentation and operational support determine the electricity ultimately delivered.